CN201301962Y

CN201301962Y - Sealing device of rotating shaft transmission mechanism

Info

Publication number: CN201301962Y
Application number: CNU2008202201541U
Authority: CN
Inventors: 黄莞露
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-02
Filing date: 2008-12-02
Publication date: 2009-09-02
Anticipated expiration: 2018-12-02

Abstract

The utility model relates to a sealing device of rotating shaft transmission mechanism. The adopted technical scheme is that the sealing device comprises a rotary transmission shaft, wherein a groove is arranged on the rotary transmission shaft, two semicircular sealing elements are buckled with the rotary transmission shaft through the groove. The diameter of the transmission shaft on the transition part of the transmission mechanism with outside is thinned from outside to inside, then two semicircular sealing rings with the certain thickness are buckled on the neck portion of the shaft after reducing to form an integrated ring which is then pressed by an inner elastic waterproof sealing element after assembly, then the integrated ring buckled by the two semicircular rings is tightly pressed on the neck portion of the reducing shaft, and is tightly matched with the neck portion after the mutual running-in by rotating the rotating shaft, thereby fundamentally solving the well sealing of solid particles.

Description

A kind of running shaft driving mechanism seal arrangement

Technical field:

The utility model is mainly used in the field of the axial region of running shaft driving mechanism to its extraneous sealing.

Background technique:

The running shaft driving mechanism will seal on its axial region.Existing Placement, as shown in Figure 1,11 pairs of outside seal approach of rotating drive shaft adopt nonmetallic material Sealings 12 such as rubber usually, with to the running shaft waterproof sealing; Or adopt the device of rotating ring, stationary ring, spring etc. to dock identical comprehensive sealing, to reach the sealing effect of the national IP grade in the practicality.But at present in the practical application, drift sand in solid matter such as the sand in dry environment or the liquid and alluvial solid particle etc. can destroy hole, axle cooperation and Sealing and access mechanism plays beyond thought destruction to conventional seals.The requirement of the seal arrangement of dynamic and static ring of employing and spring structure at assembly space and assembly technology arranged again, also is to exist sizable narrow limitation even can not realize.Therefore, in many environment, solid particles such as anti-dried sand or drift sand are had in the gearing of essence requirement, conventional seals can't meet the demands in new service condition and design technology.

Summary of the invention:

For addressing the above problem, the utility model provides a kind of running shaft driving mechanism seal arrangement, the intrusion of the sealing when properly settling the rotating drive shaft transmission, protection solid particulate matter.

The technical solution adopted in the utility model: a kind of running shaft driving mechanism seal arrangement, comprise rotating drive shaft, on rotating drive shaft, be provided with groove, two semi-ring Sealings are fastened and connected by groove and rotating drive shaft.

The beneficial effects of the utility model are: ecto-entad attenuates the diameter of axle on the rotating drive shaft of running shaft driving mechanism and outside transition position, form a groove, also promptly form one section corresponding step axle, then be fastened on the axle journal place (in the groove) of reducing as Sealing with the semi-ring of two preparations, formed one with thin neck place embrace cooperate and with the domain of axle journal place by cooperating, after the assembling, corresponding counterpart and the waterproof seal of this structure in driving mechanism, closely cooperate down, realized jointly to the sealing of outside solid particulate matter and to the protection of this mechanism.

Owing to adopted the reducing from coarse to fine of ecto-entad on rotating drive shaft and the fastening structure of split seal ring, the problem that be can't resolve at the conventional seals assembly that has solved crawl space like this, and the outside of using nonmetal waterproof sealing measures such as traditional rubber realized seal action to solid particulate matter.

Description of drawings:

Fig. 1 is running shaft driving mechanism and a mating component connection diagram in the prior art;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is the plan view of Fig. 2;

Fig. 4 is the structural representation of the utility model rotating drive shaft;

Fig. 5 is the structural representation of the utility model semi-ring Sealing;

Fig. 6 is a counterpart mutual alignment schematic representation in the utility model and the mechanism.

Embodiment:

As Fig. 2～shown in Figure 5, a kind of running shaft driving mechanism seal arrangement comprises rotating drive shaft 1, is provided with 2, two semi-ring Sealings 3 of groove and is fastened and connected by groove 2 and rotating drive shaft 1 on running shaft transmission shaft 1.

As shown in Figure 6, during use, the waterproof seal assembling will be cooperated in rotating drive shaft 1 and the mechanism, two semi-ring Sealings 3 are fastened on the rotating drive shaft 1 by groove 2, because the reducing of semi-ring Sealing 3 stops, drift sand in solid matter such as the particle sand in dry environment or the liquid environment and alluvial solid particle etc., thus rubber seal can not encroached on.

Claims

1, a kind of running shaft driving mechanism seal arrangement comprises rotating drive shaft (1), it is characterized in that: be provided with groove (2) on rotating drive shaft (1), two semi-ring Sealings (3) are fastened and connected by groove (2) and rotating drive shaft (1).